Apparatus for forming hinged sheet-metal receptacles.



mc c oumw. v APPARATUS FUR #ORMING HINGED SHEET METAL RECEPTACLES. APPLICATION FILED MW. 19. 19:2. 1 1419 291, f Patented Aug. 10,1915.

(suns-shin IN VENTOR,

ROBERT c, mcougcav wnm: s5

. HIS ATTY- R. c. McCONACHY, APPARATUS FOR FORNHNG HINGED SHEET METAL ?%E(')EFTA(.ZLESx APPLICATION FILED NOV. 19. 1912.

Patented Aug. 10, 1915.

4 SHEETS-SHE? 2.

msgm;

v INVENTOR WITNESSES F035 RT (2, mad/V5019),

R. C. MCCONACHY- APPARATUS FOR FORMING HINGED SHEET METAL RECEPTACLES.

APPLICATION FILED NOY.-i9, I912. 1,149,201. PatenteiiA-ag. 10, 1915.

4 SHEET SSHEET WITNESSES .JNVENTOR R. s. MEQQNAQHYJ APPARATUS FOR FGRfi-HNG HlNGED SHEET MUM. RECEPTACLES.

APPLZCATIOM HLEB NOV, 19, 1912. I

1,149,291. PatfilltedAug. 10,1915.

4 SHEETS-SHEEY 4 INVENTGR I WiTNESSiS FOBEBT'C m CONACHY described.

;or base.

bulbs 11 formed on the back of the receptac'ie 2 and oppositely to those previously Thebulb portions are pressed neatly around the pintles 10 to securely fasten the lid 1 to'the receptacle 2 in the man ner hereinbefore described. A hinge constructed as described will be strong, free in operation and will be very economical to manufacture.

I Wish it particularly to be understood that although the process of bulbing prior to pressing out portion of the back of the re ceptacle is preferable it is by no means es sential to the successful performance of the invention as a strong and serviceable hinge could be formed simply by pressing part of thebody outwardly and folding it around the intles or hinge-pins on the lid.

Tie advantage obtained byfirstbulbing the back of the receptacle is that when the metal is pressed back to its original position it will neatly surround the hinge-pins 3 and the edges formed by the incisions'will be brought into contiguity and not be at some distance apart as would otherwise be the case.

It will be obvious from the folegoing description that the salient feature in the construction of the hinge is the formation of the pintles or hinge-pin integrally with the lid substantially as hereinbefore described.

It will be readily apparent to those skilled in the art to which the invention relates that the form of hinge herein described can be readily employed to connect lids to receptacles of various shapes other than the rectangular type shown and, which has simply'been adopted to facilitate a clear understanding of the invention.

The apparatus devised to automatically shape and connect the hinged parts of the receptacles and lids is made in the form of a sheet metal press and consists essentially of a frame 12 of approved construction which may be supported on a suitable stand The upper end of the frame 12 is provided with a revolubly mounted driving shaft having a combined belt and fly wheel it fitted to its rear end and an eccentric 15 adjustably mounted on its front end. The motion of eccentric 15 is adapted to impart a vertical reciprocatory motion to a ram 16 designed to move in guides 17 on the front of the frame. The lower end of the ram'16 is provided with a head 16. having suitably located bosses 18 or the like adapted to move freely over guide pillars 19 of approved construction fitted to a table 20. These bosses 18 and guide pillars 19 insure the ram head moving correctly up and down and like the parts before described, are common n various kinds of sheet metal presses at present in use. Fitted to the underside of the rain head 16 are three top (1165 21, 22 and 23 which are adapted to move to and from a similar nun1- her of bottom dies 21, 2:2 and 23, respectively, fitted in an approved way to the table 20. Any well known means can be employed to secure the dies in or effect an adjustment of their position. The receptacles are passed along and treated on one side of the dies while the lids are passed along and treated on the opposite side of the said dies.

In the machine shown in the drawings the receptacles are passed along the front of the dies but this'can be altered if preferred and the lids may be treated on the fronts and the receptacles on the backs of the dies. The receptacles and lids are preferably fed to the right hand side of the machine through inclined chutes LP-shown in dotted linesand are moved intermittently along horizontal plates 25 and 25 successively to each of the dies for forming the hinges and are discharged from the left hand side of the machine with the hinged lid properly fitted and neatly closed. The means devised for intermittently moving the receptacles and lids from one set of dies to the other and discharging them from the machine comprises two endless c nveyor chains 26 mounted on sprockets 27 fitted to spindles 28 supported revolubly-in lJldCliPt5 29 afiixcd to the frame. The said chains are fitted with fingers 26 at regular distances apart which are adapted to bear against and push the receptacles and lids along the plates 25 and 25. The central portion of the driving shaft 13 is fitted with a worm wheel (not shown) which meshes with a similar wheel 30 fitted to the upper end of a shaft 31 revolubly mounted in bearings fitted to the right hand side of the frame 12. The lower end of the shaft 31 is fitted with a bevel wheel 32 which meshes with a similar wheel 33 on the outer end of a shaft 3i which passes transversely through and is rci'olubly mounted .in the frame 12 below the table '20. The opposite end of the shaft 3-l is connected to the adjacent spindle 2 by means of Geneva bevel gear. The intermittent gear operating the conveyor chains is constructed to positively lock the chains during the idle part of its, rotation in any approved and well known way. The intermittent gear at each movement rotates the sprockets 2} sufiiciently to cause a receptacle disengaged from one die to he'carried on to the next. The timing of the-intcrmittent gear and ram 16 is such that when the latter is near the end of its downward stroke and after it has been raised some distance on itsre turn stroke the former is stationary.

The receptacles and lids are forced from the plates 25 and 25 "on to the dies 21 and 22* by means of bell-crank levers 36 and that of the 37 operating on push rods 38 and 3S respectimly having their inner ends fitted With enlarged fiat heads or pressure pads 39. The hell-crank 3 plvotally mounted in a bracket ll) titted to the front of the frame while the l ell crunl 3T similarly mounted in a hearing ll located near the rear of the frame l ll of the l'lraxvings. The lower and inwardly projecting ends of the hell-cranks 56 and 37 are TOlllflQil with jaws -l2 vvl i are adaptec to engage a short bar 43 arranged to he raised and lowered hy the movement of a rocking lever ll operated from a face can; 45 carried on the continuously rr olving shaft 3%. The said rocking lever l-lis 'iivotally supported in a hearing ll and i upper is provided with a pin l7 adapted to lit the groove in the face cam The lower end of the rockinglever ll is formed \giih a jaw 48 which is adapted to engage the har l3 and when the lever is operated to raise and frame 12.

lower it to actuate the hell-cranks 2'36 and 37 and push rods 38 and '38. The upper end of the hell-crank 37 is l iturcated to engage a har which connects up bosses movahly mounted on the push rods 38 The push rods 38- are slidahly mounted in brackets Bl titted to the tal le in an ap- 30 proved way and immediately behind each of the bottom dies. The hosses 50 and helical springs are retained in a. desired position on the push rods 38 liy adjustahly fixed collars 3 or the like. The upper end of the hell'crank 36 is also hiturcated and engages a bar 5% connecting bosses 50 on the two first pushrods $38 in a like manner to that before described. The push rod on the front of the machine are mounted in brackets 51 similar to those located hehind the dies 21*. :22- and 23. The ohject of the springs 52 is to provide a resilient butter hearing for the bosses 5C operated by the movement of the he'll-cranks 36 and 37 therehy obviating the exactness of adjustmen-t. that would otherwise he necessary especially when the various parts become Worn.

The push rod 38 designed to force the receptacles on to the (lie 23 has a greater movement than any other and is operatu'l by a hell-crank 57 which is pivotally mountedin a hracket 56 atiixed to the front of the This said hell-crank has av short arm projecting forwardly from the pivotpoint and its extremity forms a pivotal connection with a rocking lever 57 supported in hearings .38 affixed to tlltfiTl'tllllQ. The rear or inner end of the rocking; lever 57 is arranged to engage and receive its motion from the har l3.

The push rods 38 and M operate siinul taneously and are timed to ton-e the receptacles and lids upon th (lies immediately the conveyor chains 2 3 cease movhelore the descent of the ram and lr'hen the ram and top dies are return or up stroke the receptacles and lids are removed from the bottom dies 21 and hy the outward movement of the ejector rods 59 governed by leaf cams 60. The said ejector rods are preferably recessed into the die lJlOlfkS and are formed with tiat circular heads or pads Gl see Figs. 19 and 20 of the drawings. The inner ends of the ejector rods 59 are formed with laterally projecting pins or studs 62 which are adapted to fit snugly within inclined slots (33 formed in the leaf cams. The ejector rods 59 are arranged to be moved ing and top dies. on their outwardly and inwardly according as the leaf cams (3!) are raised. and lowered. order to raise and lower the said leaf cams rods (34 are arranged to depend therefrom and are adjustahly titted by means at set screws 65 or the like to a horizontal bar 66. This bar 6!; is raised and lowered at predetermined l1l;8l'\'lllS hy means of a rocking lever 6'? which receives its motion from a face cam ea litted to the transverse shaft it will he seen on reterring to Fig. 20 that each leai cam operat s two ejector rods (one for the receptacles and one for the lids) in each die liloclt 21- and 22*.

The receptacli and lid are hingedly connected to each other on the die 23 and the ejector must travel a greater distance in this instance to return the receptacle to the sphere of influence ot'the conveyer chains. To effect this desired amount of movement a small hell-crank 69 is employed having its lower and shorter end pirotally connected to a vertical rod 70 adjustahly fitted to the bar '16. The upper nd longer arm of the hell-cranh ca bent or disposed so as not to obstruct the receptacle While being forced on to the die 23 and its extremity is provided with a pivotallr a tached hearins plate or pad 71 which is preferably recessed into the face of the said die. The enlarged heads. or pads 39 on the ends of the push rods 3Q and 3% can he faced with leather, ruhher or similar material to prevent injuryio the surface of the lid 61' receptacle or to the enamel or lacquer corering' the same. The said heads or prcssur pads on the push rods are su ticiently. large to serve as guide walls for the receptacles and lids .g from one set of (lies to the next while plates 20 can he located between the dies to prevent the said receptacles and lids being jammed and to insure them moving freely in a correct line.

The bottom dies overhang at the front and llziPli to give freedom for the fronts of the receptacles and lids when heing pushed thereon and the leaf cams all operating the ejector rods reciprocate in vertical recesses formed therein.

of sets of hinge-forming dies, the top dieof each set being mounted on a reciprocatingly mounted ram and the bottom die of each set fitted to a table beneath, hingeforming members on the faces of said dies,

means for delivering lids and receptacles to guides in the front and rear of the bottom dies, endless conveyers for moving said lids and receptacles intermittentl from one set of dies to another and for ischarging the receptacles from the machine, substantially as described.

3. In an apparatus or machine of the class described, a horizontal cam shaft driven from a driving shaft, a cam on the first-mentioned shaft connected to one endof and operating a rocking lever, a bar engaged b the opposite end of the said lever, bell-cranh levers pivotally mounted on the machine frame and having their inner and lower 'justably tted to said her and having leaf cams on their upper ends reciprocatingly mounted in and adapted to operate ejector rods recessed in bottom hinge-forming dies, one of said rods having apivotal connection with the short arm of a bell-crank, the upper end of which is-fitted oscillatorilyin the front of the last bottom hinge-forming die, substantially as described.

5. In an apparatus or machine of the class described, the combination of a plurality of pivotally mounted bell-crank levers, reciprocatingly mounted push rods fitted with pressure pads operated by said levers, and resilient buffers on said push rods for the bearing faces of the levers, substantially as described and for the purposes set forth.

.complemental die member mounted to has;

6. In an apparatus or machine of the class described, top and bottom hinge-forming dies, ejector rods reciprocatingly mounted in said bottom diea and operated by leaf cams reciprocatingly'hiounted in said dies at right angles to said rods, substantially as described.

7. In an apparatus or machine or the class described, a die having hinge-forming members formed on the face thereof, a depressi ble member fitted in the face of said die, a spring or springs for exerting a constant upward pressure and an inclined face on said member, substantially as described.

8. An apparatus ior automatically hinging lids to receptacles, coin rising a re ciprocable ram; dies connecte to and mo: able with the ram; compleniental die members mounted in a fixed osition in line ot' movement of the first dies; intermittently operated conveyers'for' the lids and receptacles located in the front and rear of said fixed dies; and means to push the lids and receptacles from the conveyers onto the fixed dies and to return them to the conveyers, substantially as and for the purpose spool fied.

In an apparatus for automatically hinging lids to receptacles, the combination of a series of sets of hingeforming dies, can die member of each set being fixed and th reciprocatory movement toward and m from the fixed die member; conveyers to car the lids and receptacles and intermittent y present them to the successive sets of dies; and means to deliver the lids and receptacles from the conveyors onto the lined die members and return them to the com veyers, substantially as and for the purpose specified.

In Witness whereof I have signed this;

speci cation in the presence of two with V 3. McC l' 'iNACl r Witnesses:

A. J. CALLMAN, JV. ELSHTON. 

